This photoelectric circuit was found in a 70’s Ferranti's documentation. The circuit uses an operational one from that time. Modern equivalent components can be used in a new project.
This small transmitter for telegraphy (CW) or remote control operates at the frequency determined by the...
The circuit, from Motorola's 1993 Linear Interface ICs, uses an unusual operating system today....
This interesting source, obtained in a 2001 catalog, can vary the output voltage between -16 and...